That’s right—the all-new third-generation Camaro introduced for the 1982 model year, allegedly still intended to be defined as a muscle car, had an engine option with a double-digit horsepower figure. The Iron Duke engine was purely a product of the Malaise Era scramble to sacrifice performance for fuel economy and to meet government emissions standards following the fuel crisis and influx of Japanese competition. It resulted in one of the worst-performing Camaros ever sold.

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The infamously weak, Pontiac-built Iron Duke engine was a 2.5-liter fuel-injected pushrod straight-four, which was essentially just one cylinder bank from a contemporary Pontiac V8. Production of the Iron Duke started in 1977 and continued until 1993, landing in cars across every General Motors brand except for Cadillac, including third-gen Camaros from 1982 through 1986.

GM never intended for the Iron Duke to be a performance engine, despite it showing up in seemingly-performance-oriented models like the thrid-gen Camaro and Pontiac Fiero. The Duke’d Camaro had an embarrassing zero to 60 MPH time of somewhere around 20 seconds. It also had an admittedly reasonable 132 lb-ft of torque to go with its measly 90 HP figure. Still, there was a big disconnect in the refreshed aerodynamic and sporty look of the then-new four-cylinder Camaro and how it actually drove.

The Iron Duke was only available in the base “Sport Coupe” Camaro trim, and the engine got a boost to 92 HP for the 1983 model year. It was originally available with a four-speed manual as standard, with a three-speed automatic available at extra cost.

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In 1984, the transmission choices upgraded to a five-speed manual and four-speed auto. The V6 option was only a $250 premium, and replaced the Iron Duke as the standard option for the Camaro in 1986. I’m not sure anybody really noticed.

If you were to do a quick Google search for “The Worst Cars Of All Time,” the 1982 “Iron Duke” Camaro would inevitably be named. Remember that up to that point, the Camaro was a legendary and successful sports car. But when the newly designed 1982 “Iron Duke” Camaro made its debut, the 90 hp engine left something to be desired. In the book Automotive Atrocities: The Cars We Love to Hate, author Eric Peters said that its drivers were forced to go through “the humiliation of being left in the dust by K-car station wagons.”﻿

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Time ranked the Iron Duke Camaro number 36 on a list of the 50 worst cars ever built, it was number two on Complex’s list of the 50 worst cars of the 1980s, and as Autoblog points out, Chevrolet didn’t sell very many of them.

The third-gen Camaro sans the horrible Iron Duke wasn’t bad, though. The V8 Z28 model was noted for its sharp handling and won Motor Trend’s performance car of the year award in 1982. So just the 90 horsepower model sucked, which makes sense. The four-cylinder Camaro has come a long way.